Microchannel plate (MCP) focusing optics for a repetitive laser-plasma source

I. C. Edmond Turcu; Adam N. Brunton; George W. Fraser; John Ernest Lees

doi:10.1117/12.220970

18 September 1995 Microchannel plate (MCP) focusing optics for a repetitive laser-plasma source

I. C. Edmond Turcu, Adam N. Brunton, George W. Fraser, John Ernest Lees

Proceedings Volume 2523, Applications of Laser Plasma Radiation II; (1995) https://doi.org/10.1117/12.220970
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We describe the use of microchannel plate (MCP) optics to focus soft x-rays produced by the Rutherford Appleton Laboratory (RAL) high brightness plasma source. In this source the x- ray emitting plasma is generated by a high repetition rate, picosecond pulsed excimer laser system. A low cost, low debris, high intensity soft x-ray 'beamline' results from the combination of this bright, point-like, plasma source with a planar square-pore MCP optic. Fluxes of 9 X 10⁹ photon/mm²/s at 33.7 angstrom wavelength and 4 X 10⁷ photon/mm²/s at 7.8 angstrom wavelength have been recorded at the MCP focus. This paper also describes the exploitation of the RAL source for the characterization of prototype MCP optics. Investigations into both planar MCPs with square pores and spherically 'slumped' MCPs with circular pores are reported. The small (10 micrometers diameter) size of the plasma source coupled with an ability to make absolute flux measurements greatly facilitates the calibration process.

Citation Download Citation

I. C. Edmond Turcu, Adam N. Brunton, George W. Fraser, and John Ernest Lees "Microchannel plate (MCP) focusing optics for a repetitive laser-plasma source", Proc. SPIE 2523, Applications of Laser Plasma Radiation II, (18 September 1995); https://doi.org/10.1117/12.220970

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